1. Centers for Disease Control and PreventionSmoking & tobacco use fast facts20162017-02-27https://www.cdc.gov/tobacco/data_statistics/fact_sheets/fast_facts/
2. U.S. Department of Health and Human ServicesThe health consequences of smoking-50 years of progress: a report of the Surgeon General20142016-12-22https://www.cdc.gov/tobacco/data_statistics/sgr/50th-anniversary/index.htm
3. Current Cigarette Smoking Among Adults — United States, 2005–2015
4. U.S. Department of Health and Human ServicesPreventing tobacco use among youth and young adults20122016-12-22https://www.surgeongeneral.gov/library/reports/preventing-youth-tobacco-use/
5. Annual Healthcare Spending Attributable to Cigarette Smoking